fbi agents descended on jessica ridgeway's home on tuesday, with her family's permission. bringing in search dogs and scouring the backyard, as her emotional parents spoke out for the first time. >> you get the pit in your stomach that you don't want any parent, any parent to, to ever experience in their whole entire life. >> just, it's the worst thing i've ever been through. >> reporter: sara ridgeway, says her daughter, jessica, left home on friday morning to meet up with friends for the walk to school. that was the last time she was seen. >> and i need her to walk back through that door. >> mthe camera. >> reporter: authorities are hoping this video of jessica, first broadcast on "gma," will generate new leads. >> we ask you to be here. >> reporter: overnight, residents held candlelight vigils for the safe return of the 10-year-old who loves stuffed animals and playing with her dog. >> we know how precious our children are. and we know this could happen to any of us. >> i just can't imagine going through this. >> reporter: jessica's parents, who are not married and have